Centrifugal separator.



G. E. SANFORD, E. W. KOPKBQH. E. PROONILER.

GENTRIFUGAL SEPARATOR. APPLICATIONTILBD 213.28, 1910.

Petemea 1441.141941.

2 SHEETS-SHEBT l.

G. E. SANFORD, E. W. KOPKE (Sz H. E. PROCUNIER.

UENTRIEUGAL SEPARATOR.

APPLICATION FILED FEB. 28, 1910.

Patented Febf14, 1911.

` z SHEETS-SHEET 2.

.www

y UNITED sriarus PATENT oEFIoE,

GEORGE E. SANFORD, ERNST W. 'AND HENRY E. PROCUNIER, 0F CHICAGO,

ILLINOIS, ASSIGNORS TO INTERNATIONAL CLARIFYING COMPANY, OF (IHIUAGO,-

ILLINors, A CORPORATION oF NEW anxieux.

CENTRIFUGAL SEPARATOR.

Application led (February 28,1910. Serial No. 546,568,

To all whomfbmay concern:

Be it known that we,. lnonon E. Samsom),

ERNST W. Korxn, and'HENnr E. Pnocuf Num, citizens of ,the United States, residing at Chicago, in the county of(look4 and State ofIllinois, have invented new and useful Improvements in Centrifugal Separatore, of which the following is a specification, reference being had tothe accompanying drawings, forming .a part thereof;V

This invention is an improvement upon `the Vcentrifugal separator shown and described in our joint application, Serial No.

534,806, filed December 24, 1909.

It consists in the features of constructionv i back for removing or insertingthe bowl.

l flanges upon which the. 'solid material is detion will not be described, except` in general Fig. 4 is a4 section at the line 4-4 on Fig; 1. vThe specific purposes of theV improvements shown in this" application over and above that'shownin our former application are to facilitate the insertion and removal of the 'centrifugalbowh and ,also to facilitate the removal. and insertion of .the shelves or posited in` the' bowl for the purpose of mak'- `ing it easier todischarge such' accumulations and to cleanse the bowl.

The parts of the structure which vare sub' stantially the same as in ourformer applica-l terms. The apparatus. comprises a` hollow fixed base, having at the center an upstanding" 'hollow boss, 1a, whose upwardly open cavity, `afords a seat and whose bottom forms a step bearing or support for the base, 2, of the standard, 2, of the turbine casing, 'said standard' comprising arms diverging upwardly fromthe base and joined at their upperends by an annular flange or rim, 2b, on which the turbine casing, 3, is lodged with its`axis coincident with that of the base standard. lThe base, 2, is positioned in the hollow bossbetween cushions, 4 and 4B, as fully described'inour said application. The

-usual construction `of the turbine is shown and need .noty bepartioularly described.. The

' turbine shaft, 5, is stepped at its lower end 'by means of a ball bearing formed in the upper end of the hub or central element, 2", of the standard 2. The upper member of the fast on the lower end of the shaft, 5, and the lower member' of said ball race is formed by an annular element, 7, lodged in said' hub. The ball\seats in 4both members of the ball race are substantially conformed to the balls as to their curvature in planes radial to the axis,-that is, with the radius substantially equal to the radius of the balls,-and the two seats viewedin radial section' are at opwhich is inclined at an langle of about forty for substantially ninetydegree of the circumference of the balls, s'o that the Idown at substantially their vertical axis, thereby the balls. l

On the upper sideof the turbine casin, 3 there isimounted a shaft bearing stan ard which accommodates the ball bearing, 8, for the turbine shaft, 6"; Above this ball bear- .whose lange,'9a, forms a cover for the ball vchamber The turbine shaft projects above this collaxjandat its upper end is secured rigidly toa cap, 10, whose upper end is exteriorly tapered and whose lowerend carries aV brake wheel 10, which cooperates with a brake strap, 11, operated by a bell crank lever, 12, which is fulcrumed on the spider, as more particularly described in our said former application. j

Upon the up er tapered end ofthe cap, ,10, of 4the sha t, v5,- the separator bowl 1S mounted. Said bowl comprises the bottom, consisting of two central elements, 12 and 513, clamped upon the inner circumference of an annular element,14, as more particu larly described in our said former 'applica tion, the lcylindrical element or Wallof the bowl, 15, being riveted upon the outer periphery of said annular element, 14. The central elemento-f the bowl comprises a tubular axial part, 16, which is connectedV to the upper central element, 12, `of the fixed 'bottom by means of 'a vfrusto-c'sonica-l collar,

ball race is formed by means of a collar, 6,

or spider, 7, having its hub, 7, at the up er end formed with an upwardly open cham er ing, there is fast on the' shafty a collar, 9,-

posite ends of the`-4 diameter of the balls five degrees to the axis, each seat extending thrust of the weight operates upon the balls causingthe minimum `wedgng action upon ico los

17, whose lower end is fitted about the upper end of said member, 12, of the bottom, and whose upper-end is provided with' a flange, 17, by which the part, 1G, is secured to it by boltsI taking through the lowest annular shelf orledge, 16a, of said central memberv of the bowl, which has a plurality of similar shelves ,or ledges, 16, positioned'at inter-- vals in yits height. The frusto-conical collar, 17, has a plurality of apertures, 17b,'be-

tween which are provided projecting outwardly a like plurality of blades or vanes, 17, for accelerating the 'communication to the li(A uor of the rotary movement of the bowl for the purpose of the centrifugal sep- V arating action desired. The outer cylindrical element or shell, 15, of the .bowl has interiorly projecting annular shelves or ledges, 15, corresponding-in :position to the shelves or ledges, 16a, of the central member of the bowl; and the inner diameter of said annular shelves, 15a, is vless than the outer diameter of' the'shelves, 16a, A by a small amount, for the purpose of leaving between the corresponding shelves or ledges of the two members a narrow annular aperture,

18. The head or top, 15b, of the shell or outer element, 15of the bowl has a central aperture, 15c, and the central element, 16, has a flange, 16, which covers said aperture; Fromthe flange, 16, a cylindrical flange,

16h, .projects upward a short distance, and just within said cylindrical flange the' flange, 16?, has a multiplicity of apertures, 16?, for thedischarge of the material ward for overflow outward over th' upperedge o f said cylindrical flange, 1G", as hereinafter described.

-The bowl and turbine are inclosed 1n an outer shell, 20, mounted upon Athe base, 1."

rl`his shell is divided at a plane oblique to ,the axis, and the upper member, 20, is hinged to the lower at .the lowest side of said oblique planeffor the purpose of adapting the upper end portion, together lwith the ,parts mounted thereon hereinafter scribed, to be tipped .back as a cover to un cover the upper end of the bowl. to permit its ready removal. there is formed in lthe side 'of' said outer shell, 20, a door, v20F, hinged at one`vertical edge for swinging horizontally to open the side of the shellfor tl'ieentrance and exit of the bowl, saiddoor occupying a sufficient portionV of the circumference of the shell to effect this purpose.. Upon the upper mem-- ber, 20a, there is formed. an exterior annular pocket or receptacle, 21, having a 'sloping annular top, 22, which may be made as a re.- movable cover as illustrated; and a sim-ilarly sloping annular cap, 23, is connected to the upper member, 20%, of the shell so that between said two sloping elements, 22 and 23, ,there is formed a downwardlysloping passage from the central aperture of For the `same purpose,

said annular element, 23, into the annular receptacle or pocket, 21. For conducting the material delivered upward lthrough the aperture, 15c and the aperture 16e, and over the edge4 of' the cylindrical flange, 16h, into.

-the said inclined discharge passage, an annular conducting' plate, 24, is provided mounted by lmeans of the cylindrical flange,l 24, on said cylindrical flange, 16h', so that while revolving with the bowl, said plate,

24, may conductthe material outward for delivery into said inclined passage. Said deflecting plate, 24, is removable from the annular flange, 16",` through the central aperture of the annular cover, 22, said annular cover having itself a'removablecover, 25, which is itself centrally apertured to accommodate the upper receiving end 1G*i of the central or inlet element of the bowl.

The opera-tion of the separator thus far described-is substantially the same forits principal purposes as that of the structure described invour said former application,

and may be 'briefly described, The liquor tofbe treated is supplied through ,the inlet 16d of the axial passage of the central element, 16, of the bowl, discharged centrifugally through the aperture, 17, between the accelerators, 17, theheavier solids being deposited between the shelves, 15@ the lighter solids or float material being caught under -the shelves, '161, while theclarified V.15, are made'in sectoral parte, preferably or mostconveniently, about 120 degrees, each three such sectors making up a complete shelf, and these shelves are lodgedat their outer circumference upon angle sup-ports, 25,. se-

fcured to the shell, 15.

Forl facilitating the acceleration o f the liquor necessary for the proper centrifugal laction desired, it isf preferable to provide accelerating lips or flanges, 2G, 'projectil'ig from the shelves; and when the Ashelves are made 'in sectoralparts, as above described,` these accelerating lips o r angesare most conveniently made' by folding. down the metal of each shelf at one radial edge.

rio

ln order to securethe sectoral members of the shelves suitable to each other at theirh inner edges where they lack support, and

thereby cause them to operate substantially as if integral for carryingthe load whichsecutive sectoral members of the shelf, the

unriitcd member oit the clip passing in above the two sectoral members, and the ritted member striding the depending accelerating flange and passing in below the two abutting sect ors respectively. The accelerating flange,

" 26, thus retains the clip securely in its proper position over the abutting edges, and the clip itsclf bearing upon both sectoral parts at the upper side sustains both of them by its irifted member at the lower side.

il. ln a centrifugal separator, in combina tion with a rotata-lzle bowl, a fixed shell within which the bowl is mounted for rotation, such shell having its upper part hinged at one side to the lower part for swinging upward and over therefrom, and an'exterior annular receiving chamber mounted on said upper hinged member of the shell.

2. In a centrifugal separator, in combination with a rotatable bowl, a fixed shell within which ,the bowl mounted for rotation, said shellbeing divided atan oblique plane and the upper nmember being hinged at one side to the lower member for swinging upward and over therefrom for opening the, shell; an annular receptacle mounted upon the outer sid-e of such upper hinged. member, and an inclined annular conducting plate whose outer circmnference makes junction with the upper edge of said upper member' -ojt the shell, and which extends thence 1nward overhanging the bowl, and an annular conducting plate removably mounted on the bowl encompassing the` upper discharge of the bowl. and overhanging said inclined annular conducting plate.

3. ln a centrifugal separator, in combination with a rotatable bowl, afiXed shell within which the bowl is mounted for rotation, such shell being divided and its upper niember being vhinged to its lower member at one sido for swinging upward and over to open the shell; an annular receiving chamber mounted upon the` outer side of lsaid upper hinged member; an annular conducting plate which is joined at its outer circumference to the upper end of the upper member of the shell, and which extends thence inward overlianging the boWl, and al cover for the said annular receptacle which makes junction at its outer circumference with the outer wall of said annular receptacle, aml which extends thence inward overhanging said inclined annular conducting plate. Y'

et. In a centrifugal separator, a bowl comprising an inner and an outer member inclosing an annular chamber between them, the inner member having a plurality of anf nulai` shelves projecting outwardly, and the outer member having a like plurality of annular shelves projecting inwardly, said shelves on the two members being spaced apart to form narrow' annular passages between them,-said shelves of the outer member being made in sectoral parts abutting at their radial edges, the said-outer member having ledges on its inner surface for sup.- porting said members at their outer circumference, vand clips which, clasp the adjacent .edges of said sectoral members at`their inner circumference lapping both said abutting edges.

ln a centrifugal separator, a bowl comprising an inner and an outer member, inclosing an annular chamber between them, the inner member ha ving a plurality of annular shelves projecting outwardly, and the outer member having a like plurality of annular shelves projecting inwardly, said shelves on the two members being spaced apart to form nari-ov annular passages between them. said shelves of the outer member having vertically projecting flanges for accelerating the rotary movement of the liquid with said rotar)7 element.

G. YIna centrifugalseparator, a bowl comprising an inner and an outer member inclosing an annular chamber between them, the inner member having a plurality of annular shelves piol .cting outwardly, and the outer member having a like plurality of annular shelves projecting inwardly, said shelves -on the -two members being spaced apart to form 'narrow annular passages bctween them, said shelves of the outer member being formed of sectoral parts abutting at their radial edges. cach sectoral part having a vertically projecting vflange at one of said radial edges: ledges on the inner wall oi the outer n'leniberfor supporting said scrtoral parts at their outer circumference. and clips for clasping the inner circumferential edges of said members, having one memliier of the clasp rifted to stride the flange.

ln testimony whereof, we have hereunto set our hands, at Chicago, Illinois, this 15th day of February, 1910.

HCORGE E. SANFORD. ERNST lV. KOPKE. nnN -iY rnocuuthn.

YVitnesses:

C las. S. Renvois, M. Gnn'rlufnn Am'.

lltl 

